Leds - Black Box Compact T1 MT850A User Manual

LEDs

Each channel on the Quad T1 card has two LEDs. The description of the top LED is
shown below, the bottom LED is not used with this application.
Top LED
(active)
Bottom LED
(not used)
Compact T1 - Release 6.1
State
Off
Green
Red
Yellow
Flashing Green
Flashing Yellow
Flashing Red (Slow)
Flashing Red (Fast)
Quad T1 Card
Description
Off line
Normal
Loss of Signal (LOS)
Bipolar Violation (BPV)
Loopback active
Yellow Alarm
(Remote Alarm Indication)
Loss of Frame (LOF) or Alarm
Indication Signal (AIS)
Self-test Failure
LEDs
12-11